Fuel pump pushrod ACCESS PLUG removal/installation tool?

[65Bel]

Anyone know what the correct tool is for this square-drive plug? It's larger than the tang on a 1/4" ratchet and smaller than those on any of my 3/8" ratchets. (If 3/8 is supposed to be correct, I suspect mine may be distorted from use of an improper tool in the past?)

 

[1967coronet]

Anyone know what the correct tool is for this square-drive plug? It's larger than the tang on a 1/4" ratchet and smaller than those on any of my 3/8" ratchets. (If 3/8 is supposed to be correct, I suspect mine may be distorted from use of an improper tool in the past?)

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Should be 3/8, possible paint and or crud build up.
Get the old pocket knife out or small screw driver and start cleaning.

 

[33 IMP]

Pretty sure it's 3/8. If cleaning it doesn't work, I'd get a cheap 3/8 extension, and grind on it till it fits.

 

[kiwigtx]

Paint, grease, grime, and age are built up inside the plug.

Use a sharpish screwdriver to dig the crap out, then wash out with engine degreaser or solvent spray...use a cloth to stop excess damaging other parts of the engine paint.

 

[kiwigtx]

I just went and measured up a brand new push rod and plug.....looks like you need a 5/16" square socket. I used a brand new 3/8" extension....not even close.

 

[kiwigtx]

A set of square Allen wrenches is what is needed.

 

[65Bel]

I just went and measured up a brand new push rod and plug.....looks like you need a 5/16" square socket. I used a brand new 3/8" extension....not even close.

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I think you've solved it! 5/16 is what I was seeing on my tape but I can't trust these old eyes of mine anymore. Just ordered a Carlyle 5/16 square-drive socket from NAPA on-line (P/N CHT S38SQDP10) for $5.49. Said it should be ready for pick up at my local store tomorrow! Thanks to everyone who replied & I'll post an update once I have the socket and see if it does the trick.

 

[1967coronet]

I just went and measured up a brand new push rod and plug.....looks like you need a 5/16" square socket. I used a brand new 3/8" extension....not even close.

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Well thats going to make me go check. Heck I prob owe him a new pocket knife.

 

[snakeoil24]

Think of it as a belly button full of dingle berries

 

[toolmanmike]

A set of square Allen wrenches is what is needed.

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or a square plug socket. This one is a 3/8" but you get the idea.

 

[padam]

Grind the end of a bolt square, sheesh...

 

[padam]

Then go to the hardware store and get a hex head plug

 

[chescharger]

Just pulled mine, it was hex. 1966 361

 

[gary h]

I have seen Hex plugs on my 440's (1960's) On a side note are those NOS Push rods available ? I need a couple extras.

 

[65Bel]

Should be 3/8, possible paint and or crud build up.
Get the old pocket knife out or small screw driver and start cleaning.

Pretty sure it's 3/8. If cleaning it doesn't work, I'd get a cheap 3/8 extension, and grind on it till it fits.

A set of square Allen wrenches is what is needed.

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Mission accomplished! The 5/16" square, 3/8 drive socket is a perfect fit for the access plug. As mentioned in #7, I got a nice Carlyle socket from NAPA for only $5.49 but there are numerous other brands out there. And, as Roger suggested in #6, a square 5/16 allen-type wrench would work fine as well. Thanks for your input guys!

 

[65Bel]

I have seen Hex plugs on my 440's (1960's) On a side note are those NOS Push rods available ? I need a couple extras.

Photo in #1 is a pic I found on the web. No luck finding NOS but I got a nice custom machined pushrod from Hughes Engines in Washington, IL. for $23.95 plus tax.

 

[Fran Blacker]

One thing about hex head they strip easier than square drive. Had a hex strip oil gallery plug, pita.

 

[gary h]

Anyone have thoughts on this Rod from 440 Source ?

Fuel Pump Pushrod for Mopar Big Block 383 400 440 USA Made!! | eBay

We are the Big Block Mopar parts experts.

www.ebay.com

 

[tjf1980]

I recently learned that 5/16 was an old ratchet size before 1/4 became standard after I found this lil Snap-On in my grandfather's tool box I inherited. Was super excited but soon realized none of my sockets would fit!

 

[Gary Gaz]

Anyone have thoughts on this Rod from 440 Source ?

http://[URL]https://www.ebay.com/it...a=1&pg=2334524&_trksid=p2334524.c100667.m2042

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Following too as I have one